Science fiction often imagines alien civilizations so advanced they seem like gods, with powers that look supernatural to anyone beneath them. But this episode asks a darker and more fascinating ...

A new scientific framework suggests that even if signals or physical traces from alien civilizations reached Earth, detecting ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most basic statistics point toward the existence of countless potentially ...

If so, why haven’t they said hello? The humble residents of this pale blue dot have been on a quest to find an alien civilisation for more than a century. First, it was the “canals” of Mars. Then ...

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological self-destruction — and it therefore may not want to talk to us.

In the search for extraterrestrial life, researchers have hinted at the idea that advanced alien civilizations may be communicating with each other using a series of flashing lights, similar to the ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...